● runs entirely in your browser 25 minutes of focus, then a break.
Focus
25:00
How it works
The timer counts down in your browser using a one-second setInterval loop; switching between Focus (25m), Short break (5m), and Long break (15m) just resets the counter to that mode's duration. When a session hits zero, a brief 880Hz tone plays via the Web Audio API to let you know, even if you've looked away from the tab.
FAQ
Does the countdown stay accurate if I switch to another browser tab?
Not perfectly — browsers throttle JavaScript timers in background tabs to save power, so a session left running unfocused can drift by a few seconds. It's fine for a 25-minute focus block, but worth keeping the tab open if precision matters.
Will my session survive a page refresh?
No — the remaining time only lives in the page's memory, so reloading or closing the tab resets the countdown back to the full duration of whichever mode is selected.
Free, unlimited, no account. If this saved you a paid tool, a small thanks is appreciated.